Historical Candlestick Chart - 90 Days

How to read this chart?

The first image describes a price movement for
DBD 's stock. This image consists of four charts: a candlestick chart, Simple Moving Average (SMA) 5 days chart, SMA 20 days chart, and SMA 100 days chart. A candlestick chart captures the daily trading session: the opening price, the highest price during that day, the lowest price during that day, and the closing price. A green candlestick bar describes that the closing price is higher than the opening price, the price moved up. While a red candlestick bar describes that the closing price is lower than the opening price, or the price moved down. The SMA 5 chart is an average of the last 5 closing prices. SMA 5 alone is not so useful. However combined with SMA 20 it can acts as indicator. A good time to buy is usually the day when the SMA 5 goes above the SMA 20. And a good time to sell is usually the day SMA 5 goes below SMA 20. SMA 100 however creates a long term trend for the stock, such as whether it is in uptrend or in downtrend. So do we use SMA 5, 20, 100? In north America,
within a week we have 5 working or trading days. So SMA 5 is the average throughout the week. Because most month has 4 weeks, SMA 20 can be considered as the average throughout the month. And SMA 100 is just an approach for a half a year.

The second image show the trading volume for
DBD . There are two chars for this image: the bar chart which describes the number of shares being traded during the day, and the line chart which describes the average of trading volume for the last 30 days. The combination of the two charts can shows heavy buyout or heavy sellout. For example: a heavy buyout happens when the bar color is green and the daily volume is 25% or above the average volume. On the contrary, a heavy sellout happens when the bar color is red and the daily volume is 25% or above the average volume.